baber/WOPTO huggingface dataset:
Patent KR-20170091853-A (KR)
Title: Orthodontic bracket
Inventor: KIM JAE WOOK
IPC: A61C7/14
Filed: 2016-02-02
Abstract: The present invention relates to an orthodontic bracket, which can be more easily accurately located in teeth. In the orthodontic bracket, an injection unit (a) is formed to inject a flowing adhesive material such as a movable resin or the like therethrough such that the orthodontic bracket is easily attached to teeth, and thus the mechanical problems due to thickness of an adhesive material which can be occurred when an existing orthodontic bracket is attached to teeth by using the adhesive material with a large viscosity is solved and accuracy and easiness of location adjustment of the orthodontic bracket are improved, thereby the orthodontic bracket of the present invention being able to more easily be attached to teeth. Moreover, the injection unit (a) has a smaller diameter towards a lower side from an upper side to strengthen a holding force between the orthodontic bracket and the adhesive material by another portion of the flowing adhesive material existing in the injection unit (a), thereby preventing separation of the bracket from the teeth. A lower surface of the orthodontic bracket may have an uneven or a mesh structure and a guide (b), wherein the guide (b) has a radial shape to allow the flowing adhesive material to be easily flowed thereinto.
Patent KR-20170096295-A (KR)
Title: Smart greenhouse control system
Inventor: JANG DAE JIN
IPC: G06Q50/10
Filed: 2016-02-15
Abstract: The present invention relates to a smart greenhouse control system which comprises: a greenhouse integration managing server providing cultivation environment information suitable for crop cultivation and greenhouse control information so as to build an environment inside the greenhouse based on the cultivation environment information; a greenhouse integration control device downloading the greenhouse control information of crops to cultivate in the greenhouse from the greenhouse integration managing server, and controlling at least one of a sensor node and a control node installed for each complex of the greenhouse; and a greenhouse operating server broadcasting each information to be needed between the at least one greenhouse integration control device installed for each complex of the greenhouse, a smart terminal device of each integrated manager of the greenhouse, and the greenhouse integration control server.
Patent KR-20170103330-A (KR)
Title: Attenuated Pseudomonas aeruginosa Having Improved Productivity and Safety, and Vaccine Composition Comprising the Same
Inventor: CHO YANG JE
IPC: A61K39/104
Filed: 2016-03-03
Abstract: The present invention relates to attenuated Pseudomonas aeruginosa having improved productivity and safety, and a vaccine composition for preventing infectious diseases caused by Pseudomonas aeruginosa comprising the same. More specifically, the present invention relates to attenuated Pseudomonas aeruginosa in the accession number of KCTC 12902BP, KCTC 12903BP, or KCTC 12904BP; and to a vaccine composition for preventing infectious diseases caused by Pseudomonas aeruginosa comprising the same.
Patent KR-20170106695-A (KR)
Inventor: EUN SE YOUNG
IPC: H04B17/40
Filed: 2016-03-14
Abstract: RF 중계기 시스템의 전파 전력 제어 장치 및 방법이 개시된다.  RF 무선 신호를 입력받는 신호 입력 모듈; 상기 신호 입력 모듈을 통해 입력받은 RF 무선 신호의 프레임 단위 신호를 추출하는 프레임 단위 신호 추출 모듈; 상기 프레임 단위 신호 추출 모듈에서 추출된 프레임 단위 신호의 파워(power)를 측정하고 측정된 프레임 단위 신호의 파워를 이용하여 프레임 단위 신호의 평균 파워(average power)를 실시간 산출하여 피드백(feedback)하는 프레임 단위 신호 평균 파워 산출 모듈; 상기 프레임 단위 신호 평균 파워 산출 모듈에서 산출된 평균 파워를 피드백받고 피드백받은 평균 파워를 이용하여 상기 신호 입력 모듈에서 입력받는 RF 무선 신호의 이득(gain)을 실시간 조절하는 이득 조절 모듈; 상기 이득 조절 모듈에서 이득이 실시간 조절된 RF 무선 신호를 채널별로 필터링(filtering)하여 출력하는 채널 필터 모듈을 구성한다. 상술한 RF 중계기 시스템의 전파 전력 제어 장치 및 방법에 의하면, 평균 전파 전력이 아닌 수신 신호의 프레임 단위 신호 자체의 평균 전력을 이용하여 AGC(Automatic Gain Control)을 수행하도록 구성됨으로써, 수신 신호의 트래픽 양에 따라 AGC를 수행하게 되어 PAPR이 심각하게 커지거나 전력 증폭기의 수명이 낮아지는 문제점을 해결할 수 있는 효과가 있다.
Patent KR-20170107788-A (KR)
Title: 복합금융상품 결제 대행 시스템
Inventor: KANG DAE YU
IPC: G06Q20/12
Filed: 2016-03-16
Abstract: 본 발명의 제1실시 형태는 유가증권 발행사가 관리하는 서버로서, 상기 판매자가 지정한 회사의 상품을 교환할 수 있는 액면가를 가진 유가증권을 발행하는 유가증권 발행사 서버; 상기 유가증권 발행사 서버로부터 유가증권을 직접 구매한 투자자가 관리하는 서버로서, 온라인 소매 마켓에 상기 유가증권을 유통시켜 판매하는 투자자 서버; 및 소비자가 사용하는 단말기로서, 상기 투자자 서버에서 판매하는 유가증권을 구매하여 상기 판매자가 지정한 회사의 상품을 구입하고 상기 유가증권으로서 결제하는 소비자 단말기;를 포함할 수 있다.
Patent KR-20170108220-A (KR)
Title: Anchoring apparatus of ship
Inventor: JUNG SUNG TAE
IPC: B66D5/24
Filed: 2016-03-17
Abstract: The present invention relates to an anchoring apparatus of a vessel, which fixes an anchor chain of a chain shape having an end portion coupled to an anchor, and more specifically, to an anchoring apparatus of a vessel comprising: a through path formed on a deck of a front side of a chain compressor to allow an anchor chain to penetrate and protrude to a front surface of a vessel; and a stopper formed on an upper surface of the deck formed with the through path and supporting the anchor chain such that the anchor chain is not slid to a lower portion through the through path by linearly moving along a pair of guide rails installed in a direction of the chain compressor on the upper surface of the deck to locate the through path in the middle thereof in order to fix the anchor chain wound to an upper portion through the chain compressor. According to the present invention, the anchoring apparatus of a vessel is capable of preventing an anchoring chain from being slid to a lower portion through a stopper, thereby enabling safe driving. Also, the anchoring apparatus of a vessel, compared to the conventional dock that prevents an anchor chain from being slid to a lower portion, is capable of fixing the anchor chain more firmly, thereby preventing an anchor from being crashed to a vessel so as to prevent the vessel from being damaged by the anchor.
Patent KR-20170110269-A (KR)
Title: 태양광발전장치를 결합하기 위한 조립부재
Inventor: KEE SEUNG CHEOL
IPC: H02S40/22
Filed: 2016-03-23
Abstract: 본 발명은 태양광발전장치를 결합하기 위한 조립부재에 관한 것으로서, 특히 복수개의 태양광발전장치를 조립부재에 일체로 결합하여 태양광발전을 장소의 제약 없이 손쉽게 하기 위한 것이며, 더 상세하게는 태양광발전장치가 결합된 가로등, 보안등, 경관조명등을 설치 할 때, 주변 경관과의 미관을 미려하게 할 수 있으며, 설치의 편리성을 제공하는 수단으로 사용할 수 있도록 하는 것으로서, 상기한 목적을 달성하기 위하여 본 발명은 다면으로 구성된 본체; 상기 본체의 복수개의 측면에 구성되어 복수개의 태양광발전장치를 결합하기 위한 복수개의 체결부가 형성되는 조립부재를 제공한다.
Patent KR-20170110295-A (KR)
Inventor: KIM SANG WOOK
IPC: G06Q50/10
Filed: 2016-03-23
Abstract: 본 발명은 비콘기술을 이용한 학술정보 및 학회정보 전달 서비스에 관한 것으로, 학술지 홈페이지 내에서 논문 키워드 선택 및 입력하고, 논문 제목을 클릭 시 논문을 검토하고, 논문제목, 참고문헌, 논문저자 검색을 통한 논문을 검색하는 단계; 사용자가 선택/입력한 키워드를 분석 및 기억하고, User가 클릭한 논문제목을 분석 및 기억하고, User가 검색한 논문제목/참고문헌/논문저자 정보를 분석 및 기억를 기억하는 단계; 논문을 선별하는 단계; 선별된 논문을 능동적으로 사용자에게 전달하는 단계; 및 공지사항 학회소식, 학술행사안내 행사프로그램, 주요 이슈를 사용자에게 전달하는 단계;를 포함하는, 비콘기술을 이용한 학술정보 및 학회정보 전달 서비스를 개시한다.
Patent KR-20170111838-A (KR)
Inventor: KIM JAE HO
IPC: G06F17/30
Filed: 2016-03-30
Abstract: 사물 기능과 클라우드 서비스를 활용한 자율 서비스 구성 방법이 제공된다.  본 발명의 실시예에 따른 자율  서비스 구성 방법은, 디바이스들이 제공하는 기능들과 클라우드 서버들이 제공하는 서비스들을 검색하고, 검색된 디바이스 기능들과 클라우드 서비스들을 이용하여 서비스를 구성한다.  이에 의해, 보다 폭넓고 다양한 IoT 서비스 제공이 가능해진다.
Patent KR-20170114310-A (KR)
Title: 휠 어셈블리
Inventor: YOO JIN HO
IPC: B60B21/00
Filed: 2016-04-04
Abstract: 본 발명에 따른 일 실시 예는 휠 어셈블리에 관한 것으로서, 원주 방향으로 연장된 사이드 월에 의해 정의되는 림과, 사이드 월의 내부에서 원주 방향으로 배치되는 코어 어셈블리를 포함한다. 여기서, 코어 어셈블리는 원호 형상을 가지는 코어 튜브와 코어 튜브의 양 단부에 배치되며 사이드 월의 외부면을 향하여 연장된 절곡부를 포함하는 중공 코어를 포함한다.
Patent KR-20170115143-A (KR)
Title: 트리포드 조인트 스파이더와 그 제조방법 및 이에 적용되는 합금강
Inventor: LEE SI YUP
IPC: C22C38/06
Filed: 2016-04-04
Abstract: 본 발명에 의한 트리포드 조인트 스파이더와 그 제조방법 및 이에 적용되는 합금강은, 자동차용 트리포트 조인트에 삽입되는 스파이더를 제조하는 방법으로서, 중량%로, C: 0.45~0.60%, Si: 0.30~0.50%, Mn: 0.8~1.3%, Cr: 0.40~0.80%, Mo: 0.40~0.90%, V: 0.01~0.10%, Al: 0.02~0.10%, P: 0.030% 이하(0 제외), S: 0.030% 이하(0제외), B: 0.004% 이하(0제외), 잔부 Fe 및 불가피한 불순물을 포함하는 재질의 환봉을 제조하는 단계, 환봉을 단조 가공하여 1차 성형물을 제조하는 단계, 1차 성형물을 절삭 가공하여 2차 성형물을 제조하는 단계, 2차 성형물을 고주파 열처리하여 경화시키는 단계 및 경화된 2차 성형물을 연삭 가공하여 완제품을 제조하는 단계를 포함한다.
Patent KR-20170114779-A (KR)
Title: 화장품 용기 및 그의 제조방법
Inventor: JEONG SONG EUN
IPC: A45D40/00
Filed: 2016-04-06
Abstract: 본 발명에 따른 화장품 용기는, 내용물이 수용되며 외면에 적어도 부분적으로 돌출 또는 함몰되는 입체부를 갖는 용기 본체; 상기 용기 본체의 외면에 코팅되는 도료; 및 상기 도료 상에 부분적으로 부착되는 전사지;를 포함하며, 상기 전사지는, 상기 용기 본체의 적어도 일부분에 부착되는 것을 특징으로 한다.
Patent KR-20170116378-A (KR)
Title: 그래핀 제조방법
Inventor: KIM SEUNG HWAN
IPC: C23C16/26
Filed: 2016-04-11
Abstract: 그래핀 제조방법의 일 실시예는, 제1플라즈마장치를 사용하여 성장기판에 그래핀을 성장시키는 그래핀 성장단계: 상기 그래핀의 성장이 완료된 후 목적기판에 상기 그래핀을 전사하는 그래핀 전사단계; 제2플라즈마장치를 사용하여 상기 목적기판에 전사된 상기 그래핀에 부착된 불순물을 제거하는 트리트먼트단계; 및 상기 제2플라즈마장치를 사용하여 상기 그래핀에 도펀트(dopant)를 도핑하는 도핑단계를 포함할 수 있다.
Patent KR-20160123999-A (KR)
Title: Cylinder head assembly
Inventor: FISCHER MAXIMILIAN
IPC: G01K13/04
Filed: 2016-04-12
Abstract: A cylinder head assembly (10) for an internal combustion engine has a housing (12) that is assigned a multiplicity of elements (18). An optical channel (20) is formed in the housing (12) and is assigned to at least one of the elements (18). The optical channel (20) is assigned a thermography camera (26) that is designed to detect infrared rays (28) passing from at least one element (18) through the optical channel (20) to make an available thermography image (52) of the at least one element (18). Overall, the cylinder head assembly (10) with the optical channel (20) and the thermography camera (26) makes available precise temperature measurements of a combustion chamber (22) or an element (18) of the cylinder head assembly (10) of a motor vehicle.
Patent KR-20170124915-A (KR)
Inventor: LEE SANG MIN
IPC: F04B39/12
Filed: 2016-05-03
Abstract: The present invention relates to a compressor and a sound insulating member for a compressor, the compressor comprising: a cylindrical shell; a first shell cover and a second shell cover which cover both open ends of the shell; a plurality of legs extending from an outer surface of the shell and fixed to an installation space; a suction pipe connected to the first shell cover and through which refrigerant flows; a terminal provided on an outer circumferential surface of the shell and connected to a power supply terminal; a process pipe connected to an outer circumferential surface of the shell for replenishing the refrigerant; and a sound insulating member provided with a discharge pipe, which is connected to an outer circumferential surface of the shell and through which the compressed refrigerant is discharged, and a coupling part which is formed in a sheet shape closely contacting the outer circumferential surface of the shell to block vibration noise of the shell and has both ends coming into contact so as to be bound to each other.
Patent KR-20170129495-A (KR)
Inventor: KIM CHOONG RYOL
IPC: H01P5/18
Filed: 2016-05-17
Abstract: A hybrid coupler is disclosed. The disclosed hybrid coupler of the present invention comprises: a substrate made of a dielectric material; a first compressing member coupled to one surface of the substrate; a second compressing member coupled to the other surface of the substrate; a first conductive member coupled between the substrate and the first compressing member, and made of a conductive material; and a second conductive member coupled between the substrate and the second compressing member, and made of the conductive material. The first compressing member includes a plurality of protrusions formed at a contact portion with the first conductive member. The second compressing member includes a plurality of protrusions formed at a contact portion with the second conductive member. Accordingly, the disclosed hybrid coupler can be stably fixed even with the shaking or external impact, and can easily have impedance matching even without a stub.
Patent KR-20170129515-A (KR)
Inventor: HAN SANG CHUL
IPC: H01L21/324
Filed: 2016-05-17
Abstract: A method of manufacturing a semiconductor device is provided. The method of manufacturing a semiconductor device includes providing a substrate on which a trench is formed, wherein the bottom surface of the trench comprises a first material and the sidewall surface of the trench comprises a second material different from the first material, plasma-ionizing a gas containing a deposition material and a doping material, providing the plasma-ionized deposition material and the plasma-ionized doping material into the trench, and applying a bias voltage to the bottom surface of the trench to deposit the plasma-ionized deposition material and the plasma-ionized doping material in the trench. It is possible to prevent the occurrence of resistance defects in a contact structure.
Patent KR-20170130995-A (KR)
Inventor: CHOI SEONG HO
IPC: B60T13/66
Filed: 2016-05-20
Abstract: An electronic brake system is disclosed. An electronic brake system according to an embodiment of the present invention includes a check valve installed in a flow path connecting a reservoir and a chamber of a master cylinder. The check valve includes: a housing having a bore and an inlet hole formed on one side thereof; a plunger movably provided along the bore of the housing; a sheet member closing one side of the bore and penetrated by a discharge hole; and an elastic member having one side supported by the plunger and the other side supported by the sheet member, wherein the plunger is configured to block the discharge hole when a pressure of a fluid introduced through the inlet hole is larger than the elastic force of the elastic member.
Patent KR-20170132472-A (KR)
Inventor: JANG HEUNG JIN
IPC: H02S50/00
Filed: 2016-05-24
Abstract: The present invention relates to a photovoltaic system. The photovoltaic system according to an embodiment of the present invention includes a plurality of photovoltaic modules for outputting AC power, a first switch for performing switching on a part of the plurality of photovoltaic modules, a second switch for performing switching on the other part of the plurality of photovoltaic modules, and a gateway for receiving data from the plurality of photovoltaic modules. The gateway sets a part of the plurality of photovoltaic modules as a first group based on the turn-on of the first switch and sets the other part of the plurality of photovoltaic modules as a second group based on the turn-on of the second switch. Accordingly, when the plurality of photovoltaic modules are installed, grouping can be simply performed.
Patent KR-20170132545-A (KR)
Inventor: LEE SEOK CHAN
IPC: G06F9/445
Filed: 2016-05-24
Abstract: The present invention provides a computing device. The computing device includes a plug-in profile part which stores a plurality of modular target source codes for performing a function applied to a target device operating based on a platform, a profile extraction part for extracting at least one target source code among the plurality of target source codes based on the operation information of the target device; and a platform application part for combining the at least one target source code extracted on the platform. It is possible to automatically configure the functions of the target devices constituting a SCADA system.
Patent KR-20170134113-A (KR)
Inventor: LEE NAM HOON
IPC: B26D5/08
Filed: 2016-05-27
Abstract: The present invention relates to a pipe scraper apparatus. According to the present invention, the pipe scraper apparatus comprises: a pipe fixing unit inserted into the inside of a pipe to fix a pipe when scraping an outer circumferential surface of an end portion of the pipe; and a scraping unit installed on an external side surface of an end portion of the pipe fixated by the pipe fixing unit to scrape the pipe with a blade. As only the scraping unit is rotated about the pipe fixing unit as an axis to scrape the pipe, an outer circumferential surface of the pipe can be simply scraped without fixing the pipe with an additional fixing device. Moreover, without an additional fixing device to fix the pipe, the whole composition of the apparatus can be reduced.
Patent KR-20170135500-A (KR)
Inventor: KIM KI SUNG
IPC: G06F9/30
Filed: 2016-05-31
Abstract: The present invention relates to a memory system for processing data by a memory device, and an operating method thereof. The memory system of the present invention comprises: a memory device including a plurality of pages including a plurality of memory cells connected to a plurality of word lines and storing data therein, a plurality of memory blocks including the pages, a plurality of planes including the memory blocks, and a plurality of memory dies including the planes; and a controller for inputting a plurality of commands received from a host to the memory device via command queuing. A first memory die processes the commands with a burst command in the memory dies to perform command operations in first memory blocks included in the first memory die. Data corresponding to the command operations may be stored in a plurality of latches corresponding to the first memory blocks.
Patent KR-20170136660-A (KR)
Inventor: OH JAE HWAN
IPC: H05K3/00
Filed: 2016-06-01
Abstract: Disclosed is an accumulator applied to a vertically stacked electroless nickel immersion gold facility. The accumulator includes a plurality of loading stages, each of which includes a loading groove into which a printed circuit board is inserted, wherein the plurality of loading stages are sequentially connected to each other and are driven by a conveyer method. A support rod insertion protrusion is formed near the loading groove and a support rod for supporting the printed circuit board inserted into the loading groove is inserted into the support rod insertion protrusion. Accordingly, the present invention can prevent the degradation of quality.
Patent KR-20170141041-A (KR)
Inventor: JUNG DONG HO
IPC: F16L23/00
Filed: 2016-06-14
Abstract: The present invention provides a filter for a pipe which can minimize occupation of an installation space and reduce weight. To this end, the filter for a pipe according to the present invention, positioned between a first and a second pipe and communicating with the first and second pipes, comprises: a ring-shaped filter flange having a hollow part; and a filter unit covering the hollow part of the filter flange and protruding from one surface of the filter flange, wherein the filter unit has an outer diameter smaller than an inner diameter of the first and second pipes and is inserted into the first pipe or the second pipe.
Patent KR-20170143064-A (KR)
Inventor: NAM GUK HYEON
IPC: G03B15/00
Filed: 2016-06-17
Abstract: The present invention relates to a night vision camera detachable to a helmet and a control method thereof and, more particularly, to a night vision camera which can be attached to and detached from a helmet by being mounted on a reference position of the helmet using a magnet and can be securely fixed to the helmet by using magnetic force and connector coupling force, and a control method thereof. The night vision camera detachable to the helmet according to an embodiment of the present invention comprises: the helmet; the night vision camera connected to the helmet and photographing the periphery of the helmet by amplifying stray light in a night environment; and a display unit displaying the photographed information. The night vision camera includes: a mount fixated to at least a portion of the helmet; and the magnet by which a body of the night vision camera and the mount are attached to each other with magnetism, wherein the night vision camera can be attached to and detached from the helmet by using the magnetism.
Patent KR-20170142739-A (KR)
Inventor: CHOI SUK MOON
IPC: H01B3/42
Filed: 2016-06-20
Abstract: The present invention provides a composition for manufacturing a sheath of a non-halogen high flameproof insulating wire, comprising: 10-30 parts by weight of ethylene vinyl acetate; 20-30 parts by weight of ethylene methyl acrylate; 5-20 parts by weight of polyester-based thermoplastic elastomer; 30-40 parts by weight of polyethylene having linearly low density; 15-25 parts by weight of maleic anhydride grafted ethylene vinyl acetate; 150-200 parts by weight of magnesium hydroxide coated by silane compound; 2-5 parts by weight of primary antioxidant (zinc oxide); 2-3 parts by weight of secondary antioxidant (tertrakis(methylene-3-(3,5-di-tert-buthyl-4-hydroxyphenyl)propionate)methane); 0.5-2 parts by weight of primary anti-weather agents (mercaptobenzo tri-imidazole); 1 part by weight of secondary anti-weather agents (stearic acid); 2-5 parts by weight of anti-adhesive agents; 2-5 parts by weight of cross-linking accelerators; and 5-8 parts by weight of cross-linking agents. The purpose of the present invention is to provide a composition for manufacturing a sheath of a non-halogen highly flameproof insulating wire which minimizes the absorbing of inorganic flame retardants, has a high insulating characteristic, and is easy to detach a sheath body.
Patent KR-20180000846-A (KR)
Inventor: KIM JONG MOON
IPC: B01D46/52
Filed: 2016-06-24
Abstract: A filter for a dust collector comprises: a wrinkle-shaped filter membrane in which an inner bending unit and an outer bending unit are alternately formed; a support reinforcing unit consisting of a compressed area formed by compressing part of a front end of the inner bending unit; and a retainer arranged in the filter membrane by being in contact with the support reinforcing unit. According to the present invention, processes for manufacturing a filter bag used in a filter for a dust collector can be simplified and manufacturing time can be effectively reduced.
Patent KR-20170000810-A (KR)
Inventor: KANG SUK YOUN
IPC: C08F136/04
Filed: 2016-06-24
Abstract: The present invention relates to a catalyst composition which comprises a rare earth metal compound, an alkylating agent, a halogen compound, and a functionalizing agent represented by chemical formula 1 of (X_1)_a-N-(X_2)_3-a, shows excellent catalytic activity and polymerization reactivity, and is useful for preparing a conjugated diene polymer having high linearity and excellent processability. The present invention also relates to a conjugated diene polymer prepared by using the catalyst composition. In chemical formula 1, a, X_1 and X_2 are the same as defined in the specification.
Patent KR-20180003138-A (KR)
Inventor: NA SANG YOUL
IPC: A61K8/73
Filed: 2016-06-30
Abstract: The subject matter of the present specification relates to a multiple emulsion composition comprising three or more phases, wherein two adjacent phases have opposite charges. In the composition, an interface is stabilized by the interaction between charges caused by the opposite charges of adjacent phases, and thus an aggregation, fusion, or creaming phenomenon of emulsion particles can be prevented in the multiple emulsion composition.
Patent KR-20180004563-A (KR)
Inventor: YOO SEONG JONG
IPC: E05B15/10
Filed: 2016-07-04
Abstract: An embodiment of the present invention relates to a push-pull structure. According to an embodiment of the present invention, provided is the push-pull structure which includes: a first moving unit and a second moving unit installed on a handle part; a first rotating unit rotated by the movement of the first moving unit and a second rotating unit rotated by the second moving unit; a connecting unit connecting the first rotating unit and the second rotating unit; a rotator interlocked with the connecting unit and connected to a mortise for locking or unlocking a locking device; a reaction force structure arranged on the connection unit and including an elastic member; and a switching member which is separated from or mounted on the reaction force structure. The position of the elastic member is changed through the switching member. Accordingly, the present invention can easily perform a switch to push-pull or pull-push.